Filtering water has many benefits such as improving the taste of water and making it cleaner and healthier for your consumption. However, if you’ve ever replaced the water filter in your refrigerator, you know they don’t come cheap. Some name brands may cost you as much as $60 per filter. If you change it every six months, as recommended, that can really add up. It’s natural that consumers try to find affordable yet workable filters online. How to Find a Better-priced and Qualified Filter Yourself There are three leading industry standards for filtration products and systems set by NSF International: NSF/ANSI 42, 53, and 401 (which itself is accredited by the American National Standards Institute or ANSI). NSF/ANSI 42 The filters are certified to reduce aesthetic impurities such as...